Digital PCR for Quantifying Periodontal Pathobionts (dPCR)

November 14, 2024 updated by: Rok Gašperšič, University of Ljubljana

Digital PCR for Quantifying Periodontal Pathobionts: A Comparative Study With qPCR

Comparison of quantitative polymerase chain reaction (qPCR) and digital polimerase chain reaction (dPCR) quantification of subgingival plaque samples.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

40

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Slovenia
      • Ljubljana, Slovenia, 1000
        • University Medical Centre Ljubljana

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

The study comprised of two subject groups. The first group consisted of 20 subjects with periodontitis, who had at least one probing site in each jaw quadrant with pocket depth (PPD) measuring > 4 mm and positive bleeding on probing (BOP). Periodontitis stage and grade were determined following the 2018 classification system.

The second group consisted of 20 volunteers without periodontal pathologies (healthy group), i.e. plaque index < 10% at baseline visit, absence of periodontal pockets measuring > 4 mm and no prior periodontal treatment.

Description

For inclusion, each subject had to be systemically healthy and aged 20 to 80 years. Subjects were excluded if they: had less than 5 teeth in each jaw quadrant, regularly used a mouthwash as part of their oral hygiene routine, had received antibiotics during the last 6 months or during the study period, were pregnant or lactating, had a known systemic illness (i.e. HIV/AIDS, diabetes mellitus, cancer, diseases of bone metabolism, diseases affecting wound healing) or were treated with immunosuppressants, chemotherapy, radiation, calcium antagonists, antiepileptics and non-steroidal anti-inflammatory drugs.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Periodontitis patients
Diagnostic test: digital PCR
digital PCR quantification of subgingival plaque samples
Individuals with healthy periodontium
Diagnostic test: digital PCR
digital PCR quantification of subgingival plaque samples

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
concentration of targeted bacterial species, expressed as genome equivalents per mL (Geq/mL), normalized for ribosomal gene copy number per cell
Time Frame: Baseline
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Ljubljana

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 3, 2024

Primary Completion (Actual)

October 20, 2024

Study Completion (Actual)

November 2, 2024

Study Registration Dates

First Submitted

November 14, 2024

First Submitted That Met QC Criteria

November 14, 2024

First Posted (Estimated)

November 18, 2024

Study Record Updates

Last Update Posted (Estimated)

November 18, 2024

Last Update Submitted That Met QC Criteria

November 14, 2024

Last Verified

November 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UKCdPCR1
  • J7-4639 (Other Grant/Funding Number: ARIS)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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